28443701322 has 12 divisors (see below), whose sum is σ = 61628019570. Its totient is φ = 9481233768.

The previous prime is 28443701311. The next prime is 28443701327. The reversal of 28443701322 is 22310734482.

It is a happy number.

28443701322 is a `hidden beast` number, since 284 + 4 + 370 + 1 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27849268161 + 594433161 = 166881^2 + 24381^2 .

It is not an unprimeable number, because it can be changed into a prime (28443701327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 790102797 + ... + 790102832.

Almost surely, 2^28443701322 is an apocalyptic number.

28443701322 is an abundant number, since it is smaller than the sum of its proper divisors (33184318248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28443701322 is a wasteful number, since it uses less digits than its factorization.

28443701322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580205637 (or 1580205634 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 28443701322 in words is "twenty-eight billion, four hundred forty-three million, seven hundred one thousand, three hundred twenty-two".